ABSTRACT
This proceedings contains 96 papers on ocean biodiversity;breeding, reproduction, feeding and diseases of aquacultured fish and shellfish;water quality;fishery management, seafood preservation and quality;aquaculture and fishery economics and the impact of COVID-19 on aquaculture and fishery production.
ABSTRACT
This proceedings contains 43 papers on the behaviour, welfare, breeding, reproduction, feeding and diseases of mink, blue foxes and chinchillas, as well as the impacts of COVID 19 on fur farming.
ABSTRACT
This 4th edition covers issues associated with sustainable aquaculture development, culture systems, hatchery methods, nutrition and feeding of aquaculture species, reproductive strategies, harvesting, and many other topics. While its main focus is on the culture of fish, molluscs and crustaceans for food, the book also covers other forms of aquaculture, such as the production of seaweeds, recreational fish and ornamental species, as well as live foods, such as algae and rotifers that are used to feed larval shrimp and marine fish. Thoroughly updated and revised, this essential textbook now includes increased coverage of open-ocean cage culture and sea lice issues with salmon culture, coverage of the significant progress made in nutrition, including the move away from fishmeal as protein and fish oil as lipids in feed, information on biofloc technology uses, predictive impacts of climate change, probiotics, and the impact of COVID-19 on the aquaculture community, and updated aquaculture production statistics and lists of approved anaesthetics. Aquaculture remains one of the most rapidly growing agricultural disciplines, and this book remains an essential resource for all students of aquaculture and related disciplines.
ABSTRACT
This article describes the economic impact of COVID-19 to the global aquaculture industry and possible mitigation procedures to improve the supply, breeding and genetics, farming techniques, feed formulation, production costs, marketing and prices. The results of studies regarding the beneficial effects of proteinases on the growth performance and nitrogen digestibility and excretion in fishes and shrimp are also presented.
ABSTRACT
Studies on the impact of the COVID-19 pandemic on animal welfare and dairy husbandry in low-income countries are limited. We conducted a survey between February and June 2020 to evaluate the economic impact and animal health problems upon the pandemic. Participants were lead veterinarians from 14 dairy farms with herd size between 100 and 500 in Lahore. These farms were major suppliers of milk and dairy products to central Punjab, Pakistan. During the pandemic, 10 of the 14 dairy farms relied on feed mill concentrates to provide feeds to their herds. Half of the farms reported feed shortage due to lockdowns. Six (43%) dairy farms have witnessed a 7.5% shortage of dry feed intake. In seven (50%) farms, the body condition score decreased by 0.24 point. The body score reduction was significantly associated with depleted feed intake (P = 0.005). The veterinarians of 10 (71%) farms failed to gain access to essential veterinary medications, hampering the treatment of sick animals. Due to feed shortage and drug unavailability, daily milk production reduced by two litters per cow in the herd of five (35%) farms. The reduced feed intake was significantly associated with the decrease in milk production (P = 0.003), while numerous downstream milk-processing facilities were out of service during the pandemic, significantly reducing the profit of six (43%) dairy farms. Finally, our study showed that the dairy farming industry and animal welfare were critically affected by three aspects: feed shortage, inaccessibility to essential veterinary drugs, and a reduced consumer demand for dairy products.